Phenomenology of kaonic atoms and other strange hadronic atoms

Abstract

Recent optical-potential studies of the phenomenology of kaonic atoms are reviewed. It is shown that the data can be fitted by a complex optical potential with either a relatively shallow attractive component (about -50 MeV at nuclear-matter density), as suggested by a self consistent application of chirally motivated coupled-channels models, or a relatively deep attractive component (about -180 MeV at nuclear-matter density) as suggested by a mean-field extrapolation of a phenomenological low-density expansion. Both classes of these optical potentials, due to their strongly absorptive component, predict similarly structured relatively narrow `deeply bound' kaonic-atom states with widths saturating at about 2 MeV. Possible formation reactions are briefly discussed. The more speculative case for relatively narrow deeply bound kaonic nuclear states is briefly mentioned. Recent works on other strange hadronic atom systems, for the negatively charged Sigma and Cascade hyperons, are also discussed.

arXiv comment11 pages including 8 figures, to be published in NPA (Proc. HYP2000)

Cited by in corpus (16)

• Phi meson mass and decay width in nuclear matter
• Antikaon production in A+A collisions at SIS energies within an off-shell G-matrix approach
• Kaons and antikaons in hot and dense hadronic matter
• The $\varphi$ meson width in the medium from proton induced $\varphi$ production in nuclei
• In-medium effects in strangeness production in heavy-ion collisions at (sub-)threshold energies
• Isospin dependent kaon and antikaon optical potentials in dense hadronic matter
• Kaons and antikaons in asymmetric nuclear matter
• Kaon properties in (proto)neutron stars
• Transport analysis of K+ production in proton-nucleus reactions
• On the Surface Structure of Strange Superheavy Nuclei
• Level inversion in kaonic nuclei and the high-density nuclear equation of state
• Novel halos in light kaonic nuclei as an indicator of nuclear equation of state at supra-normal densities
• Strangeness at SIS energies
• Ground-state properties of light kaonic nuclei signaling symmetry energy at high densities
• Kaons production at finite temperature and baryon density in an effective relativistic mean field model
• Strangeness production at finite temperature and baryon density in an effective relativistic mean field model